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<H1 class="no-header">form_variables 3x</H1>
<PRE>
<STRONG><A HREF="form_variables.3x.html">form_variables(3x)</A></STRONG>                                          <STRONG><A HREF="form_variables.3x.html">form_variables(3x)</A></STRONG>




</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
       <STRONG>TYPE_ALNUM</STRONG>, <STRONG>TYPE_ALPHA</STRONG>, <STRONG>TYPE_ENUM</STRONG>, <STRONG>TYPE_INTEGER</STRONG>, <STRONG>TYPE_IPV4</STRONG>,
       <STRONG>TYPE_NUMERIC</STRONG>, <STRONG>TYPE_REGEXP</STRONG> - form system global variables


</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
       <STRONG>#include</STRONG> <STRONG>&lt;form.h&gt;</STRONG>

       <STRONG>FIELDTYPE</STRONG> <STRONG>*</STRONG> <STRONG>TYPE_ALNUM;</STRONG>
       <STRONG>FIELDTYPE</STRONG> <STRONG>*</STRONG> <STRONG>TYPE_ALPHA;</STRONG>
       <STRONG>FIELDTYPE</STRONG> <STRONG>*</STRONG> <STRONG>TYPE_ENUM;</STRONG>
       <STRONG>FIELDTYPE</STRONG> <STRONG>*</STRONG> <STRONG>TYPE_INTEGER;</STRONG>
       <STRONG>FIELDTYPE</STRONG> <STRONG>*</STRONG> <STRONG>TYPE_IPV4;</STRONG>
       <STRONG>FIELDTYPE</STRONG> <STRONG>*</STRONG> <STRONG>TYPE_NUMERIC;</STRONG>
       <STRONG>FIELDTYPE</STRONG> <STRONG>*</STRONG> <STRONG>TYPE_REGEXP;</STRONG>


</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
       These are building blocks for the form library,  defining  fields  that
       can  be  created using the <STRONG><A HREF="form_fieldtype.3x.html">form_fieldtype(3x)</A></STRONG> functions.  Each provides
       functions for field- and character-validation, according to  the  given
       datatype.


</PRE><H3><a name="h3-TYPE_ALNUM">TYPE_ALNUM</a></H3><PRE>
       This holds alphanumeric data.


</PRE><H3><a name="h3-TYPE_ALPHA">TYPE_ALPHA</a></H3><PRE>
       This holds alphabetic data.


</PRE><H3><a name="h3-TYPE_ENUM">TYPE_ENUM</a></H3><PRE>
       This holds an enumerated type.


</PRE><H3><a name="h3-TYPE_INTEGER">TYPE_INTEGER</a></H3><PRE>
       This holds a decimal integer.


</PRE><H3><a name="h3-TYPE_IPV4">TYPE_IPV4</a></H3><PRE>
       This holds an IPv4 internet address, e.g., "127.0.0.1".


</PRE><H3><a name="h3-TYPE_NUMERIC">TYPE_NUMERIC</a></H3><PRE>
       This holds a decimal number, with optional sign and decimal point.


</PRE><H3><a name="h3-TYPE_REGEXP">TYPE_REGEXP</a></H3><PRE>
       This holds a regular expression.


</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
       The  <STRONG>TYPE_IPV4</STRONG> variable is an extension not provided by older implemen-
       tations of the form library.


</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
       <STRONG><A HREF="form.3x.html">form(3x)</A></STRONG>.



                                                            <STRONG><A HREF="form_variables.3x.html">form_variables(3x)</A></STRONG>
</PRE>
<div class="nav">
<ul>
<li><a href="#h2-NAME">NAME</a></li>
<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
<li><a href="#h2-DESCRIPTION">DESCRIPTION</a>
<ul>
<li><a href="#h3-TYPE_ALNUM">TYPE_ALNUM</a></li>
<li><a href="#h3-TYPE_ALPHA">TYPE_ALPHA</a></li>
<li><a href="#h3-TYPE_ENUM">TYPE_ENUM</a></li>
<li><a href="#h3-TYPE_INTEGER">TYPE_INTEGER</a></li>
<li><a href="#h3-TYPE_IPV4">TYPE_IPV4</a></li>
<li><a href="#h3-TYPE_NUMERIC">TYPE_NUMERIC</a></li>
<li><a href="#h3-TYPE_REGEXP">TYPE_REGEXP</a></li>
</ul>
</li>
<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
</ul>
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